Act as a seasoned screenwriter with a background in psychological thrillers. Craft a gripping opening scene for a thriller film where [PROTAGONIST], a [OCCUPATION] with a [UNIQUE PERSONALITY TRAIT], stumbles upon a chilling clue that hints at the identity of a notorious serial killer. The scene should take place in [SETTING], using atmospheric tension and subtle foreshadowing. Focus on the protagonist’s internal conflict—[SPECIFIC FEAR OR WEAKNESS]—as they grapple with the moral dilemma of whether to pursue the killer alone or involve authorities, knowing it could put [LOVED ONE OR VULNERABLE CHARACTER] at risk. Include a twist or red herring to mislead the audience.